We shall see.
Not sure why you rate Robbie Grossman. He was just average last year, bad in 2022 and not good defensively. Still gets on base but got outslugged by Sosa. And was no more effective as a PH (especially in the playoffs) as our guys were (which is less about him than how random and difficult that role is).
I mean sure I'd sign him to a minor league deal but he looks like another Josh Harrison even more than Merrifield (with whom my only issue is the guaranted money and the playing time that is probably accompanied by it long after he deserves it, if that's how it goes. If not, great).
I just don't think managers play this level of chess in a regular season game. Maybe in September if it's an active pennant race. But they're willing to lose games for long-term gain including challenging and developing their young players (and not insulting them).
Bohm is still unproven against RHP, you mean. Which is 75% of his ABs! There is no way he is ever going be PH hit for against an RHP. Andy argues Merrifield will never play 3B, even, because the Phillies have never sat Bohm for offensive reasons, just for Sosa/defense, and Merrifield wouldn't be better defensively.
Marsh, on the other hand, still lacks the Phillies' confidence or they wouldn't have signed Merrifield.
I still have a suspicion that Pache beats out Cave, in part because Merrifield is capable of hitting RHP if he's actually capable. That would also be a vote of less confidence in Rojas of course, a "just in case" should Rojas end up struggling and going back to AAA.